CN215461500U

CN215461500U - High double-deck multi-leaf collimator of security

Info

Publication number: CN215461500U
Application number: CN202121906781.2U
Authority: CN
Inventors: 范晓鹏
Original assignee: Fuzhou Tongchan Optoelectronic Technology Co ltd
Current assignee: Fuzhou Tongchan Optoelectronic Technology Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-01-11
Anticipated expiration: 2031-08-16

Abstract

The utility model relates to the technical field of multi-leaf collimators, and discloses a high-safety double-layer multi-leaf collimator, which comprises a shell, wherein an installation frame is arranged on the left side of the inner wall of the shell, an installation plate is arranged on the right side of the inner wall of the shell, two supporting blocks are arranged on the left side of the installation plate, bearing seats with one ends clamped with the right side of the installation frame are arranged at the tops of the two supporting blocks, two multi-leaf collimator boxes are arranged at the tops of the bearing seats, multi-leaf collimator blades extending to the left side and the right side of each multi-leaf collimator box are arranged in each multi-leaf collimator box, an air inlet hole positioned on the left side of the installation frame is arranged on the left side of the inner wall of the shell, and a heat dissipation assembly is arranged in each installation frame. This high double-deck multi-leaf collimator of security can help the user to carry out high-efficient heat dissipation to double-deck multi-leaf collimator, has made things convenient for the user to carry out dismouting maintenance or maintenance to double-deck multi-leaf collimator.

Description

High double-deck multi-leaf collimator of security

Technical Field

The utility model relates to the technical field of multi-leaf collimators, in particular to a double-layer multi-leaf collimator with high safety.

Background

At present, medical electronic linear accelerators are widely used by various hospitals for treating malignant tumors, most equipment is provided with an advanced multi-leaf collimator system, the multi-leaf collimator can quickly finish conformal field shaping, each layer of the double-layer multi-leaf collimator consists of two oppositely-arranged leaf groups, the leaves move along the axial direction vertical to ray beams, the double-layer multi-leaf collimator allows certain gaps to be formed between the adjacent leaves, gaps between the adjacent leaves of the upper (lower) layer are blocked by the leaves of the lower (upper) layer, and the capability of forming irregular field shapes is improved.

In practical application, the working time of most hospital electronic linear accelerators often exceeds more than twelve hours, so that related blades and blade carriages of the double-layer multi-blade collimator are in high-speed motion for a long time, the heating value of related parts such as a driving circuit is huge, the aging and even direct damage of the related parts can be accelerated after long-time operation, meanwhile, medical equipment needs to be maintained regularly, and the double-layer multi-blade collimator needs to be disassembled and maintained due to limited space, the existing equipment is relatively complex to disassemble and assemble, so that the double-layer multi-blade collimator with high safety is provided to solve the problem.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a high-safety double-layer multi-leaf collimator, which has the advantages of high heat dissipation efficiency, high safety and convenience in maintenance, and solves the problems that in practical application, the working time of most hospital electronic linear accelerators often exceeds more than twelve hours, so that related parts such as a driving circuit and the like of the double-layer multi-leaf collimator are in high-speed motion for a long time, the heat productivity of the related parts is huge, the aging and even direct damage of the related parts can be accelerated after long-time running, meanwhile, medical equipment needs to be maintained regularly, the double-layer multi-leaf collimator needs to be disassembled and maintained due to limited space, and the disassembly and the assembly of the existing equipment are complex.

(II) technical scheme

In order to achieve the purposes of high heat dissipation efficiency, high safety and convenient maintenance, the utility model provides the following technical scheme: the double-layer multi-leaf collimator with high safety comprises a shell, wherein an installation frame is arranged on the left side of the inner wall of the shell, a mounting plate is arranged on the right side of the inner wall of the shell, two supporting blocks are arranged on the left side of the mounting plate, bearing seats with one ends clamped with the right side of the installation frame are arranged at the tops of the two supporting blocks, two multi-leaf collimator boxes are arranged at the tops of the bearing seats, multi-leaf collimator leaves extending to the left and right sides of the multi-leaf collimator boxes are arranged inside the multi-leaf collimator boxes, an air inlet hole in the left side of the installation frame is formed in the left side of the inner wall of the shell, a filter screen is arranged inside the air inlet hole, a heat dissipation assembly is arranged inside the installation frame, and a control assembly which is clamped with the two bearing seats and one end of which penetrates through the upper supporting block is arranged on the left side of the mounting plate.

Preferably, the heat dissipation assembly comprises a servo motor, the inner bottom wall of the mounting frame is fixedly provided with the servo motor, a partition plate positioned on the left side of the servo motor is fixedly arranged between the inner top wall of the mounting frame and the inner bottom wall, an output shaft of the servo motor penetrates through the partition plate and is fixedly provided with a rotating shaft, one end of the rotating shaft is rotatably connected with the left side of the inner wall of the shell, a rotating disc is fixedly arranged on the outer side of the rotating shaft, an auxiliary plate positioned above the rotating shaft is fixedly arranged between the left side of the partition plate and the inner wall of the shell, the left side of the inner wall of the shell is slidably connected with a movable plate, one end of the movable plate extends to the right side of the partition plate and is positioned above the auxiliary plate, the bottom of the movable plate is fixedly connected with a traction rope, one end of the traction rope penetrates through the auxiliary plate and is fixedly connected with the rotating disc, and first springs are fixedly connected with the inner top of the inner top wall of the mounting frame and the top of the auxiliary plate respectively on the upper and lower sides of the movable plate, two first spring all is located the left side of baffle, the below first spring housing is in the outside of haulage rope, the top fixed mounting of movable plate has the cooling fan that is located the baffle right side.

Preferably, the control assembly comprises a fixed frame, the left side fixed mounting of mounting panel has quantity for two and is located two fixed frames that bear the seat top respectively, sliding connection has the movable block between the inner wall left and right sides of fixed frame, the bottom fixed mounting of movable block have one end run through fixed frame inner bottom wall and with bear the spacer pin of seat block, top the top sliding connection of fixed frame has one end to run through it and extend to the inside connecting rod of the fixed frame in below, the connecting rod is located the right side of spacer pin and runs through the top movable block and rather than fixed connection, the bottom of connecting rod and the top fixed connection of below movable block, the top fixed mounting of movable block has one end and the fixed frame inner top wall fixed connection of top and overlaps at the connecting rod outside second spring, the top fixed mounting of connecting rod has the pull ring.

Preferably, the exhaust hole has been seted up on the inner wall right side of casing, the draw-in groove with bearing seat looks adaptation is seted up on the right side of installing frame, the inside of installing frame is the cavity setting, the inner wall left side of installing frame is the opening form, the louvre that is located two draw-in groove tops respectively is seted up on the inner wall right side of installing frame.

Preferably, the inside of the partition board is provided with a rectangular hole matched with the moving track of the moving plate, and the inner side wall of the rectangular hole is designed to be smooth.

Preferably, the inside of the bearing seat is provided with a light hole positioned between the left multi-leaf collimator box and the right multi-leaf collimator box, and the top of the bearing seat is provided with a limiting groove matched with the limiting pin.

(III) advantageous effects

Compared with the prior art, the utility model provides the double-layer multi-leaf collimator with high safety, and the double-layer multi-leaf collimator has the following beneficial effects:

this high double-deck leafy collimater of security, it rotates to drive the pivot through setting up servo motor, the pivot drives the carousel and rotates, the carousel drives the movable plate through haulage rope and two first springs and reciprocates, the movable plate drives cooling fan and reciprocates, thereby helped the user carry out high-efficient heat dissipation to double-deck leafy collimater, medical equipment's security has been improved, when needs are maintained leafy collimater, drive the connecting rod rebound through setting up the pulling pull ring, the connecting rod drives two movable block rebound, two movable blocks drive two spacer pins and keep away from bearing the seat and break away from the block, thereby made things convenient for the user to carry out dismouting maintenance or maintenance to double-deck leafy collimater, user's use has been made things convenient for.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1 according to the present invention.

In the figure: the device comprises a shell 1, a mounting frame 2, a mounting plate 3, a supporting block 4, a bearing seat 5, a multi-leaf collimator box 6, a multi-leaf collimator leaf 7, a heat dissipation assembly 8, a servo motor 81, a partition plate 82, a rotating shaft 83, a rotating disc 84, an auxiliary plate 85, a movable plate 86, a traction rope 87, a first spring 88, a heat dissipation fan 89, a control assembly 9, a fixed frame 91, a movable block 92, a limiting pin 93, a connecting rod 94, a second spring 95, a pull ring 96, an air inlet 10 and a filter screen 11.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a double-layer multi-leaf collimator with high safety comprises a shell 1, a mounting frame 2 is fixedly mounted on the left side of the inner wall of the shell 1, a mounting plate 3 is fixedly mounted on the right side of the inner wall of the shell 1, two supporting blocks 4 are fixedly mounted on the left side of the mounting plate 3, bearing seats 5 with one ends clamped with the right side of the mounting frame 2 are respectively placed at the tops of the two supporting blocks 4, exhaust holes are formed in the right side of the inner wall of the shell 1, clamping grooves matched with the bearing seats 5 are formed in the right side of the mounting frame 2, the mounting frame 2 is hollow, the left side of the inner wall of the mounting frame 2 is open, heat dissipation holes respectively formed above the two clamping grooves are formed in the right side of the inner wall of the mounting frame 2, two multi-leaf collimator boxes 6 are movably mounted at the tops of the bearing seats 5, multi-leaf collimator leaves 7 extending to the left side and the right side of the multi-leaf collimator boxes 6 are movably mounted in the interiors of the multi-leaf collimator boxes, an air inlet 10 positioned on the left side of the mounting frame 2 is formed in the left side of the inner wall of the shell 1, and a filter screen 11 is fixedly mounted inside the air inlet 10.

The heat dissipation assembly 8 is fixedly installed inside the installation frame 2, the heat dissipation assembly 8 comprises a servo motor 81, a servo motor 81 is fixedly installed on the inner bottom wall of the installation frame 2, a partition plate 82 positioned on the left side of the servo motor 81 is fixedly installed between the inner top wall and the inner bottom wall of the installation frame 2, an output shaft of the servo motor 81 penetrates through the partition plate 82 and is fixedly installed with a rotating shaft 83, one end of the rotating shaft 83 is rotatably connected with the left side of the inner wall of the shell 1, a rotating disc 84 is fixedly installed on the outer side of the rotating shaft 83, an auxiliary plate 85 positioned above the rotating shaft 83 is fixedly installed between the left side of the partition plate 82 and the inner wall of the shell 1, a moving plate 86, one end of the moving plate 86 extends to the right side of the partition plate 82 and is positioned above the auxiliary plate 85, a rectangular hole matched with the moving track of the moving plate 86 is formed inside the partition plate 82, the inner side wall of the rectangular hole is designed to be smooth, a traction rope 87, one end of the bottom of the moving plate 86 penetrates through the auxiliary plate 85 and is fixedly connected with the rotating disc 84, the upper side and the lower side of the movable plate 86 are fixedly provided with first springs 88 which are fixedly connected with the inner top wall of the mounting frame 2 and the top of the auxiliary plate 85 respectively, the two first springs 88 are positioned on the left side of the partition plate 82, the first spring 88 on the lower side is sleeved on the outer side of the traction rope 87, the top of the movable plate 86 is fixedly provided with a heat dissipation fan 89 positioned on the right side of the partition plate 82, the servo motor 81 is arranged to drive the rotating shaft 83 to rotate, the rotating shaft 83 drives the rotating disc 84 to rotate, the rotating disc 84 drives the movable plate 86 to move up and down through the traction rope 87 and the two first springs 88, and the movable plate 86 drives the heat dissipation fan 89 to move up and down, so that a user is helped to efficiently dissipate heat of the double-layer multi-leaf collimator, and the safety of the medical equipment is improved.

The left side of the mounting plate 3 is fixedly provided with a control component 9 which is clamped with the two bearing seats 5 and one end of which penetrates through the upper supporting block 4, the control component 9 comprises a fixed frame 91, the left side of the mounting plate 3 is fixedly provided with two fixed frames 91 which are respectively positioned above the two bearing seats 5, a moving block 92 is connected between the left side and the right side of the inner wall of the fixed frame 91 in a sliding way, the bottom of the moving block 92 is fixedly provided with a limit pin 93, one end of the limit pin 93 penetrates through the inner bottom wall of the fixed frame 91 and is clamped with the bearing seats 5, the inside of the bearing seat 5 is provided with a light transmission hole positioned between the left multi-leaf collimator box 6 and the right multi-leaf collimator box 6, the top of the bearing seat 5 is provided with a limit groove matched with the limit pin 93, the top of the upper fixed frame 91 is connected with a connecting rod 94, one end of which penetrates through the upper moving block 92 and is fixedly connected with the upper fixed frame 91, the connecting rod 94 is positioned on the right side of the limit pin 93 and penetrates through the upper moving block 92, the bottom of connecting rod 94 and the top fixed connection of below movable block 92, the top fixed mounting of top movable block 92 has one end and the fixed frame 91 roof fixed connection in top and overlaps at connecting rod 94 outside second spring 95, the top fixed mounting of connecting rod 94 has pull ring 96, when needing to maintain multi-leaf collimator, drive connecting rod 94 rebound through setting up pulling pull ring 96, connecting rod 94 drives two movable blocks 92 rebound, two movable blocks 92 drive two spacer pins 93 and keep away from bearing seat 5 and break away from the block, thereby made things convenient for the user to carry out dismouting maintenance or maintenance to double-deck multi-leaf collimator, the user use has been made things convenient for.

In summary, the high-safety double-layer multi-leaf collimator drives the rotating shaft 83 to rotate by the servo motor 81, the rotating shaft 83 drives the rotating disc 84 to rotate, the rotating disc 84 drives the moving plate 86 to move up and down by the traction rope 87 and the two first springs 88, and the moving plate 86 drives the cooling fan 89 to move up and down, so that a user is helped to efficiently cool the double-layer multi-leaf collimator, the safety of medical equipment is improved, when the multi-leaf collimator needs to be maintained, the pull ring 96 is arranged to drive the connecting rod 94 to move up, the connecting rod 94 drives the two moving blocks 92 to move up, the two moving blocks 92 drive the two limit pins 93 to be far away from the bearing seat 5 and to be disengaged, the user can conveniently disassemble, assemble, maintain or repair the double-layer multi-leaf collimator, the use by the user is facilitated, and the problem that in practical application, the working time of most hospital electronic linear accelerators often exceeds more than twelve hours, the double-layer multi-leaf collimator enables the related leaves and leaf sliding frames of the double-layer multi-leaf collimator to be in high-speed motion for a long time, the heat productivity of related parts such as a driving circuit is huge, the aging and even direct damage of the related parts can be accelerated after the long-time operation, meanwhile, the medical equipment needs to be maintained regularly, the double-layer multi-leaf collimator needs to be disassembled and assembled and maintained due to limited space, and the existing equipment is complex to disassemble and assemble.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A double-layer multi-leaf collimator with high safety comprises a shell (1), wherein a mounting frame (2) is arranged on the left side of the inner wall of the shell (1), the right side of the inner wall of the shell (1) is provided with a mounting plate (3), the left side of the mounting plate (3) is provided with two supporting blocks (4), the tops of the two supporting blocks (4) are respectively provided with a bearing seat (5) one end of which is clamped with the right side of the mounting frame (2), the top of the bearing seat (5) is provided with two multi-leaf collimator boxes (6), the inside of the multi-leaf collimator box (6) is provided with multi-leaf collimator leaves (7) extending to the left and right sides, the left side of the inner wall of the shell (1) is provided with an air inlet (10) positioned at the left side of the mounting frame (2), the inside of inlet port (10) is provided with filter screen (11), its characterized in that: the mounting frame (2) is internally provided with a heat dissipation assembly (8), and the left side of the mounting plate (3) is provided with a control assembly (9) which is clamped with two bearing seats (5) and one end of which penetrates through the upper supporting block (4).

2. A high safety double-layered multileaf collimator according to claim 1, wherein: radiator unit (8) include servo motor (81), the interior diapire fixed mounting of installing frame (2) has servo motor (81), fixed mounting has between the interior roof of installing frame (2) and the interior diapire and is located left baffle (82) of servo motor (81), the output shaft of servo motor (81) runs through baffle (82) and fixed mounting has pivot (83) that one end and casing (1) inner wall left side were rotated and is connected, the outside fixed mounting of pivot (83) has carousel (84), fixed mounting has between the left side of baffle (82) and the inner wall of casing (1) and is located auxiliary plate (85) of pivot (83) top, the inner wall left side sliding connection of casing (1) has one end to extend to baffle (82) right side and is located movable plate (86) of auxiliary plate (85) top, the bottom fixedly connected with one end of auxiliary plate (85) run through auxiliary plate (85) and with carousel (84) fixed connection's haulage rope (87) ) The upper and lower both sides of movable plate (86) are all fixed mounting have respectively with first spring (88) of the top fixed connection of the interior roof of installing frame (2) and accessory plate (85), two first spring (88) all are located the left side of baffle (82), the below first spring (88) cover is in the outside of haulage rope (87), the top fixed mounting of movable plate (86) has cooling fan (89) that are located baffle (82) right side.

3. A high safety double-layered multileaf collimator according to claim 1, wherein: the control assembly (9) comprises a fixed frame (91), the left side of the mounting plate (3) is fixedly provided with two fixed frames (91) which are respectively positioned above two bearing seats (5), a moving block (92) is connected between the left side and the right side of the inner wall of the fixed frame (91) in a sliding manner, the bottom of the moving block (92) is fixedly provided with a limit pin (93) of which one end penetrates through the inner bottom wall of the fixed frame (91) and is clamped with the bearing seats (5), the top of the fixed frame (91) is connected with a connecting rod (94) of which one end penetrates through the fixed frame and extends into the fixed frame (91) at the lower part, the connecting rod (94) is positioned on the right side of the limit pin (93) and penetrates through the moving block (92) at the upper part and is fixedly connected with the moving block (92), the top of the moving block (92) is fixedly provided with one end and the inner top wall of the fixed frame (91) at the upper part and is fixedly connected with the top of the moving block (92) at the upper part and sleeved on the fixed frame (91) A second spring (95) is arranged on the outer side of the connecting rod (94), and a pull ring (96) is fixedly mounted at the top of the connecting rod (94).

4. A high safety double-layered multileaf collimator according to claim 1, wherein: the exhaust hole has been seted up on the inner wall right side of casing (1), the draw-in groove with bear seat (5) looks adaptation is seted up on the right side of installing frame (2), the inside of installing frame (2) is the cavity setting, the inner wall left side of installing frame (2) is the opening form, the louvre that is located two draw-in grooves tops respectively is seted up on the inner wall right side of installing frame (2).

5. A high safety double-layer multileaf collimator according to claim 2, wherein: the inside of baffle (82) is seted up the rectangular hole with movable plate (86) moving trajectory looks adaptation, the downthehole lateral wall of rectangular hole is smooth design.

6. A high safety double-layer multileaf collimator according to claim 3, wherein: the inside of the bearing seat (5) is provided with a light hole positioned between the left multi-leaf collimator box and the right multi-leaf collimator box (6), and the top of the bearing seat (5) is provided with a limit groove matched with the limit pin (93).